SB2022050919 - Ubuntu update for jbig2dec

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Main Vulnerability Database SB2022050919

SB2022050919 - Ubuntu update for jbig2dec

Published: May 9, 2022

Security Bulletin ID SB2022050919
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2017-9216)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the jbig2_huffman_get function in jbig2_huffman.c due to NULL pointer dereference. A remote attacker can cause the service to crash when parsing an invalid file.

2) Heap-based buffer overflow (CVE-ID: CVE-2020-12268)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the jbig2_image_compose() function in jbig2_image.c when processing JPEG files in Artifex jbig2dec. A remote attacker can pass specially crafted JPEG file to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

References